Hello,

It seems to be timestamped (yes, this certificate expired). But it "should" still be valid in this case.

What does this installer do (on your machines where it works)? Does it extract files to a temporary folder and then (during the extraction process) it displays this error? Or does it display the error when you start the installer (before it starts an action)?

Could you please use the /E logging switch (e.g. installername.exe /E) and send the generated sbevents.txt file (root of c:\) to support [at] lindersoft [dot] com. But it is very well possible that the vendor disabled this switch, so I am not sure if this will work.

Friedrich